Looking for Procedure to Import custom Anthropometric data into Jack

In addition to the default anthropometric data that is available in Jack we would like to add a additional data. As per the release notes of V6.0 this is possible through python script. We located the script which is available with the Jack Installation and the same is attached herewith. I was looking to understand if someone has performed this import in the past and if so what is the procedure. We used the command of source to try and import the sample file initially. Looking for help on this.